English
Related papers

Related papers: Singular Kahler-Einstein metrics

200 papers

We propose new types of canonical metrics on K\"ahler manifolds, called coupled K\"ahler-Einstein metrics, generalizing K\"ahler-Einstein metrics. We prove existence and uniqueness results in the cases when the canonical bundle is ample and…

Differential Geometry · Mathematics 2017-03-16 Jakob Hultgren , David Witt Nyström

Let $(X,\omega)$ be a compact K\"ahler manifold of dimension $n$ and fix an integer $m$ such that $1\leq m\leq n$. We reformulate most relative pluripotential results of Darvas-DiNezza-Lu's survey \cite{DNL23} to the Hessian setting. As an…

Differential Geometry · Mathematics 2024-01-17 Genglong Lin

Let $(X,\omega)$ be an $n$-dimensional compact K\"{a}hler manifold. We study degenerate complex Hessian equations of the form $(\omega+dd^c\varphi)^m\wedge \omega^{n-m}=F(x,\varphi)\omega^n.$ Under some natural conditions on $F$, this…

Complex Variables · Mathematics 2012-10-23 Lu Hoang Chinh

We prove the existence of canonical tubular neighbourhoods around complex submanifolds of K\"ahler manifolds that are adapted to both the holomorphic and symplectic structure. This is done by solving the complex Homogeneous Monge-Amp\`ere…

Complex Variables · Mathematics 2016-09-16 Julius Ross , David Witt Nyström

We give necessary and sufficient conditions for existence of solutions to a general system of complex Monge-Amp\`ere equations on Fano horosymmetric manifolds. In particular, we get necessary and sufficient conditions for existence of…

Differential Geometry · Mathematics 2022-05-09 Thibaut Delcroix , Jakob Hultgren

Uniform $L^\infty$ and H\"older estimates were proved by the Kolodziej for complex Monge-Amp\`ere equations on compact K\"ahler manifolds with $L^p$ volume measure with $p>1$. On the other hand, establishing H\"older estimates on singular…

Complex Variables · Mathematics 2025-08-29 Bin Guo , Slawomir Kolodziej , Jian Song , Jacob Sturm

We prove uniform gradient and diameter estimates for a family of geometric complex Monge-Ampere equations. Such estimates can be applied to study geometric regularity of singular solutions of complex Monge-Ampere equations. We also prove a…

Differential Geometry · Mathematics 2017-06-07 Xin Fu , Bin Guo , Jian Song

In this paper, we prove a uniform and sharp estimate for the modulus of continuity of solutions to complex Monge-Amp\`ere equations, using the PDE-based approach developed by the first three authors in their approach to supremum estimates…

Differential Geometry · Mathematics 2021-12-07 Bin Guo , Duong H. Phong , Freid Tong , Chuwen Wang

Let $X_0$ be an affine variety with only normal isolated singularity $p$ and $\pi: X\to X_0$ a smooth resolution of the singularity with trivial canonical line bundle $K_X$. If the complement of the affine variety $X_0\backslash\{p\}$ is…

Differential Geometry · Mathematics 2012-07-30 Ryushi Goto

We show that if a Fano manifold does not admit Kahler-Einstein metrics then the Kahler potentials along the continuity method subconverge to a function with analytic singularities along a subvariety which solves the homogeneous complex…

Complex Variables · Mathematics 2023-06-22 Nicholas McCleerey , Valentino Tosatti

Given an $n$-dimensional compact K\"ahler manifold, we continue our study of $m$-positivity in two ways. We first propose generalisations of the notions of pseudo-effective and big Bott-Chern cohomology classes of bidegree $(1,\,1)$ by…

Differential Geometry · Mathematics 2025-11-03 Sławomir Dinew , Dan Popovici

We prove a regularity result for the Monge--Amp\`ere equations on compact Kaehler manifolds with degenerate rhs member.

Differential Geometry · Mathematics 2007-05-23 Mihai Paun

We show that if a Fano manifold $M$ is K-stable with respect to special degenerations equivariant under a compact group of automorphisms, then $M$ admits a K\"ahler-Einstein metric. This is a strengthening of the solution of the…

Differential Geometry · Mathematics 2015-06-25 Ved Datar , Gábor Székelyhidi

We study two different natural notions of singular K\"ahler-Einstein metrics on normal complex varieties. In the setting of singular Ricci flat K\"ahler cone metrics that arise as non-collapsed limits of sequences of K\"ahler-Einstein…

Differential Geometry · Mathematics 2025-05-06 Max Hallgren , Gábor Székelyhidi

Let X be a K\"ahler manifold and D be a R-divisor with simple normal crossing support and coefficients between 1/2 and 1. Assuming that K_X+D is ample, we prove the existence and uniqueness of a negatively curved Kahler-Einstein metric on…

Complex Variables · Mathematics 2012-01-05 Henri Guenancia

Let $X$ be a canonically polarized variety, i.e. a complex projective variety such that its canonical class $K_{X}$ defines an ample $\Q-$line bundle, and satisfying the conditions $G_1$ and $S_2$. Our main result says that $X$ admits a…

Complex Variables · Mathematics 2016-05-10 Robert J. Berman , Henri Guenancia

Inspired by a parabolic system of Li-Yuan-Zhang and the continuity equation of La Nave-Tian, we study a system of elliptic equations for a K\"ahler metric $\omega$ and a closed $(1, 1)$-form $\alpha$. Assuming a uniform estimate for…

Differential Geometry · Mathematics 2026-01-13 Xi Sisi Shen , Kevin Smith

Let $X$ be a normal compact K\"ahler space of dimension $n$. A surjective endomorphism $f$ of such $X$ is int-amplified if $f^*\xi-\xi=\eta$ for some K\"ahler classes $\xi$ and $\eta$. First, we show that this definition generalizes the…

Algebraic Geometry · Mathematics 2022-03-15 Guolei Zhong

We prove several quantitative stability estimates for solutions of complex Monge-Ampere equations when both the cohomology class and the prescribed singularity vary. In a broad sense, our results fit well into the study of degeneration of…

Complex Variables · Mathematics 2022-12-01 Hoang-Son Do , Duc-Viet Vu

Given a compact K\"ahler manifold, we survey the study of complex Monge-Amp\`ere type equations with prescribed singularity type, developed by the authors in a series of papers. In addition, we give a general answer to a question of…

Complex Variables · Mathematics 2026-01-06 Tamás Darvas , Eleonora Di Nezza , Chinh H. Lu